0000950170-24-106467.txt : 20240913 0000950170-24-106467.hdr.sgml : 20240913 20240913171335 ACCESSION NUMBER: 0000950170-24-106467 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240912 FILED AS OF DATE: 20240913 DATE AS OF CHANGE: 20240913 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Bartram Richard CENTRAL INDEX KEY: 0001723729 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-42272 FILM NUMBER: 241298585 MAIL ADDRESS: STREET 1: C/O ESPERION THERAPEUTICS, INC. STREET 2: 3891 RANCHERO DRIVE, SUITE 150 CITY: ANN ARBOR STATE: MI ZIP: 48108 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MBX Biosciences, Inc. CENTRAL INDEX KEY: 0001776111 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 12406 HORESHAM STREET CITY: CARMEL STATE: IN ZIP: 46032 BUSINESS PHONE: 3179893100 MAIL ADDRESS: STREET 1: 12406 HORESHAM STREET CITY: CARMEL STATE: IN ZIP: 46032 4 1 ownership.xml 4 X0508 4 2024-09-12 0001776111 MBX Biosciences, Inc. MBX 0001723729 Bartram Richard C/O MBX BIOSCIENCES, INC. 11711 N. MERIDIAN STREET, SUITE 300 CARMEL IN 46032 false true false false Chief Financial Officer false Stock Option (Right to Buy) 16.00 2024-09-12 4 A false 42578 0.00 A 2034-09-11 Common Stock 42578 42578 D 25% of the shares underlying this option vest and become exercisable on September 12, 2025, with the remaining 75% vesting in thirty-six (36) equal monthly installments thereafter, subject to the Reporting Person's continued service on each such vesting date. /s/ Richard Bartram 2024-09-13